Bhattacharjee P K, Basu A K, . (1963). Textbook of Railway Engineering. Bombay: ORIENT LONGMAN.
Bhattacharjee P K, Basu A K, . 1963. Textbook of Railway Engineering. Bombay: ORIENT LONGMAN.
Bhattacharjee P K, Basu A K, . Textbook of Railway Engineering. Bombay: ORIENT LONGMAN. 1963.